HI

we are studying rational expressions and have this problem to figure out.

a man is walking up an escalator which is travelling at one step a second and has 30 steps. He is going up at his own speed.

upon reaching the top he realizes that he needs to go back down. The time is takes him to go down is twice the time it takes him to go up.

what is his speed?

any and all help is appreciated.

kind regards

Brad